Clathrate of azithromycin hydrate with 1,2-propyleneglycol, method for the manufacture thereof and pharmaceutical composition comprising same
CA 2445114 A1 · Owner: Suh, Kwee Hyun · Inventors: Lee, Gwan Sun; Seong, Mi Ra; Suh, Kwee Hyun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A clathrate of azithromycin hydrate with 1,2-propyleneglycol is much less hygroscopic than azithromycin hydrate or crystals known in the art therefore, it can be useful for the preparation of a medicine for treating various microbial infections.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 25, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.